Growing Lemongrass in Zone 9b
Zone 9b has warm winters and an extended growing season — excellent for heat-loving crops like Lemongrass. Last frost: Mar 10. First frost: Nov 15.
Planting Calendar
Season: Mar 10 – Nov 15 (250 days)
When to Plant Lemongrass in Zone 9b
Start Seeds Indoors: Jan 13
Start Lemongrass seeds indoors around Jan 13 (8 weeks before last frost). Optimal germination temperature: 80°F. Germinates in 14–21 days.
Transplant Outdoors: Mar 31
Transplant Lemongrass seedlings outdoors after Mar 31. Wait until soil temperature reaches 65°F. Space plants at 24/sqft. Harden off plants for a week before moving outside.
Harvest: Jun 14
First harvest approximately Jun 14 (~75 days from transplant). Continue harvesting until first frost (Nov 15).
Lemongrass in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bFrequently Asked Questions
When should I plant Lemongrass in Zone 9b?
Start Lemongrass seeds indoors around Jan 13. Transplant outdoors after Mar 31. Expect first harvest around Jun 14.
What is the last frost date for Zone 9b?
The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.
Can I grow Lemongrass in Zone 9b?
Yes. Lemongrass needs 120 days to harvest. Zone 9b has a 250-day growing season, which is sufficient.
What is the best month to plant Lemongrass in Zone 9b?
The best time to start Lemongrass in Zone 9b is Jan. Begin seeds indoors around Jan 13, then transplant outdoors after the last frost date of Mar 10.
How long does Lemongrass take to harvest?
Lemongrass takes approximately 120 days from planting to harvest. In Zone 9b, expect your first harvest around Jun 14.
Plan Your Lemongrass Garden
Track Lemongrass from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Lemongrass Growing Guide